Improvement in automatic gates



zsheefsL-sheeu. J. vE. STO N G.

. Automatic Gates.

N0. 141,900, PatentedAugust9,l.873

` Automat'ic Gates.

N0. 141,900. Patented August 19, 1873.

UNITED STATES PATENT iOIEFICIE.

JOSEPH E. STONG, OF NEWTON BROOK, CANADA.

y IMPROVEMENT lN AUTOMATIC GATES.

Specification forming part of Letters Patent No.\141,900, dated August 19, 1873; application tiled July 26, 1872.

passengers either riding, driving, or on foot;

and after such passengers have passed through the gateway7 such gates may be readily closed.

In carrying out my invention the gate is supported at the upper part by means of parallel levers, which are arranged in pairs at each side of the gate. These parallel levers at their upper ends are connected to the gate by means of bolts or pins capable of turning in bearings in the parallel bars. AtV their lower ends'one pair of parallel bars are supported and turn on axes carried by a block or bed firmly affixed in the ground. The other pair of parallel bars at 1their lower end turn on and are supported by a shaft or axis which passes through and is supported by a pair of posts arranged one in front and the other in rear of the gate. To the parallel bars supported by the axis carried by the posts a chain is attached in such manner as to form an extended loop. Through one of the links of each of these looped chainsa connecting-rod is'passed, the lower end of which is provid ed with a curved extension and a button or knob for securely'holding the chain in position. The opposite end of each connecting-rod is formed with a hook or loop arranged at Aright angles to the curved extension. Each of these loops is, by means of other loops or staples, connected to one end of one of a pair of levers which pass, with capability of free movement, through the main posts at right angles to the gate, and are supported by stirrups extending down from and affixed to a cross-beam supported by the main posts. The opposite end of each pair of levers to which the connectin g-rods are connected are provided with loopsor staples, to which a rope or chain is attached, which hangs down in position to be easily taken hold of by passengers who may require to pass through the gateway; but that my invention may be fully understood, I will proceed to describe the same more in detail by aid of the accompanying drawings.

Figure l is a perspective view of apparatus arranged according to my invention, showing a gate closed. Fig. 2 is a front view of the same on a smaller scale, showing the gate open. Fig.

3 is an end view, and Figs.'4 and 5 detached views,of one of the connecting-rods of the apparatus.

a represents a gate, which is supported by means of parallel levers b b c c, arranged in pairs at each side of the gate. These parallel levers b b and c c, at their upper ends, are connected to the gate a by means of bolts or pins b1 c1, capable of turning in bearings in the parallel bars. At their lower lends the bars b b are supported by and turn on axes b2 b2, carried by a block, d, firmly iixed in the ground. The other pair of parallel levers, c c, at their lower end s, turn on and are supported by a shaft or axis, c, which passes through and is supported by a pair of main posts, c c, arranged one in front and the other in rear of the gate ct. To each of the parallel levers c c a chain, c3, is connected at c4 c4 in such manner as to form an extended loop. Through one of the linlgs of each of these looped chains 03a connecting-rod, f, is passed, the lower end f 1 of which is provided with a curved extension, f2, and a button or knob, f3, for securely holding the chain c3 in position upon the curved extension f2. The opposite end of each connectin g-rod f is formed with a hook or loop, f4, arranged at right angles to the curved extension f2. Each of these locpsf4 is, by means, of other loops or staples, g1, connected to one end, g2, of one of a pair of levers, g, which pass, with capability of free movement, through the main posts c c at right angles to the gate a, and are supported by bearings hl h1 carried by stirrups h2 h2 extending down from and affixed to a cross-beam, i, supported by the main posts e c. To the end g3 of each of the levers g a rope orchain, g4, is attached, which hangs down in position to be easily taken hold of and operated by passengers who may require to pass through the gate-` way.

-Supposing the gate to be closed, as represented by Fig. 1, when it is required to open the same from any one side, it is simply necessary to pull upon one of the ropes or chains g4, thereby lowering the end g3 of its levers g, and raising the end g2, and with it its connectin g-rod f, by which means tension Will be eX- erted on the chain o3, whereby the lever c, to which it is attached, will be caused to rise and carry with it the gate a, and the corresponding lever c and the levers b b, until the gate has passed the center. It will then fall over by its own gravity into the position shown by Fig. 2. The levers g g are formed sufciently heavy to counterbalance the weight of the gate a, to facilitate its movement and prevent concussion of the same.

When a passenger has passed through the gateway it is simply necessary to operate the gate in a similar way to that already described by pulling the other rope or chain, and the same will be closed.

By this arrangement it Will be seen that gates may be readily opened or closed by passengers on horseback or driving without necessitating their dismounting or leaving their vehicles.

Having thus described lnyinvention, Iwould have it understood that I lay no claim to a tiltiong gate, as I am aware that the same is old;

What I do claim, and desire to secure by Letters Patent, is

The combination, with a tilting gate such as herein described, of the balance-levers g g, supported in stirrups h1, suspended from a cross-bar, i, and provided with chains or ropes g4, connecting-rods f, and looped chains c3, all arranged, constructed, and operated substantially as shown and described.

Toronto, July 20, 1872.

JOSEPH E. STONG.

Witnesses:

J. HERBERT BARTLETT, GEORGE RrDoUT. 

